Improvement in casting skeins of wagon-boxes



UNITED STATES PATENT OEEIcE.

THOMAS OONSIDINE, OF CHICAGO, ILLINOIS.

IMPROVEMENT IN CASTENG SKElNS OF WAGON-BOXES.

Specification forming part of Letters Patent No. 60,340, dated October 10,1865.

To all whom it 'may concern Be it known that 1, THOMAS CoNsIDINE, of Ohicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Casting Skeins and Boxes for the "Axles ofWheel-Vehicles; 'and I do hereby de- '4, a vertical section of the flasks in which the mold for'theskeiu is formed; Fig. 5, a vertical section of the asks in which the mold for the 'box and nut is formed; Fig. 6, a vertical section of the mold in which the core for the skein is formed; Fig. 7, a vertical section cf the mold in which the core for the box is formed.

Similar letters of reference indicate like parts.

This invention relates to a new and improved mode of casting or forming molds for the casting of metal skeins and boxes for the axles of wheel-vehicles; anditconsistsiuanovel means employed for adj Listing the patterns, constructing and arranging the same relatively with the flasks, whereby the forming of the molds is greatly expedited and very perfect and su perior castings obtained.

A, Fig. 1, represents a framing composed of four vertical posts, a, having a horizontal platform, B, near its lower part, and a vertical screw, O, which works in a nut, D, at the center of the platform, the shaft on which the screw is cut passing up through a bar, E, on which a platform, F, is secured, and through which platform the posts a of the framing pass loosely. The screw-shaft below the bar E has a hand-wheel, G, keyed upon it, and above .said bar it has a key, b, passing through it, so

that by turningv the wheel G the platform F may be raised and lowered. llhis will be fully understood by referrin g to Fig. l'. On the tops of the posts a of the framing A there is placed a horizontal platform, H, having a hole,rc, at

patterns passing through, an d correspondin gin shape to said patterns, so aste fit snugly around them.

l I willtirst proceed to describe the manner of forming the mold for the skein and socket J, (shown in Fig. 3,) and which are both cast in one piece.

The lower part ofthe socket J, or the inner part when viewed ina horizontal position on the axle, has its meld in a iiask' placed on a box, K, (see Fig. 6,) which contains the mold K for forming the corecf the skein and socket.

This portion ofthe mold, with its tiask, is designated by L, Fig. 4. The part a of the mold above the box K serves as a pattern for the inner part of the socket-mold, as will be perfectly understood by referring to Figs. 4 and 6. The other part of the mold for the socket is formed by apattern, M', which rs-screwed on the center of a block, a", having an arbor, l VVb, which passes through the center of platform F, and has a, Wheel, e", attached, and on Athe platform H a tiask, L', is placed and filled with sand around M, the latter being raised `the required distance through hole c. This portion of the mold is placed on L, and con pletes the mold for the socket, as'shown in Fig. 4.

The mold for the skein is formed by a separate pattern, N, screwed on pattern M and passing up through the hole'of a plattgrm similar to H..

By turning the screw U the'platform F, and consequently the pattern N, may be raised or lowered as desired, and it is adjusted sol that the collar portion d. will projectl the required distance above the upper su'rl'a'ce'of platform H. A flask, O, is then placed on platform H and filled with sand aroundthe pattern, and

when lled the pattern is turned by turning the wheel c", and the sand around the pattern made perfectly smooth. The flask O is then placed on liask L', as shown in Fig. 4. The mold for the screw ot' the skein is in a flask, P, and is formed in thensual way. The patterns M N may be withdrawn from their tlasks by screwing down the platform F.

.The corefor the skein and socket is formed in the mold K' in box K (shown in Fig. 6) in one operation with the formation of the mold for the inner end of the exterior of the socket,

. its centerto admit of ,the-lower parts of the l as previously alluded to. This mold K may i is formed with a recess or sunken portion,'e, extending all around it, as shown in Fig. 7, so

cumferential projection, and cause the box to be of metal and fitted in the box Kin such a manner that it may be readily' withdrawn when required.

The pattern for the box Q is made of ai'orm corresponding to the exterior of the latter, and is fitted on the block a* like the pattern M, and raised and lowered through a plat-form like E. A flask, R, is .placed on this platform and filled with sand around the pattern.

The core for the box is formed ina mold (shown at'T in Fig. 7,) and it is composed of two equal parts tittediu a box, U. This mold that the core will 4have a corresponding cirbe cast with an internal recess, f, corresponding to that, c, of the mold, said recessfserving as au oil-chamber, as shown clearly in Fig. 3. The forming of the mold 'l in two parts admits of the core being made with the projection to form the oil-chamber in the box.

By this mode of forming the molds for the skeins and boxes the work may he expeditiously performed, and in a superior manner. The turning of the pattern N is an important feature, as it smooths the interior of the mold formed by said pattern, and causes the skein to be cast with a smooth exterior, and dispenses with the necessity for rapping the pat- ,tern in drawing it, which rapping in the coml mon Way ot' molding not cars the inner surface of -the mold, but causes the pattern to settle down in the sand, and hence results in variation and inaccuracy in the length ot' the skeins or other articles produced.

In practceI frequently emplo5T racks andpiuions instead of the. screw (l s hown'in "the Ldrawings, and form a number of moldsfat one operation, the runner being located in the cen.- ter, with gates communicating to the several molds, and the patterns for said gates and run ner being withdrawn from the sand by tue form F, all arranged substantially as shown, for

raising and lowering'aud for rotating the pattern, for the purpose specified.

2. The mold K' for the core of the skein and socket, having` a pattern, a', to form the mold for the inner end ot the exterior ot the socket J, when used in combination with the match board or box K and ask L, as described.

THOMAS GONSIDINE. Witnesses i J. C. THAYER,

MICHAEL il' ANLON. 

